Title

Influence of the Fiber Type and Matrix Age on the Bonding of FRCM Composite Strips Applied to Concrete Substrates

Abstract

Fiber reinforced cementitious matrix (FRCM) composites represent an alternative to fiber reinforced polymer (FRP) composites for strengthening existing civil structures. FRCM is comprised of fibers, usually in the form of a textile with an open-mesh configuration, embedded in an inorganic mortar matrix. It shares the advantages of FRP systems and overcomes some of its drawbacks, which makes it suitable for a wide range of applications. Although research on this topic is still scarce, it has been shown that debonding represents a key factor in its performance. In order to gain more insight in this issue, a series of classical push-pull single-lap direct shear tests were carried out on basalt, carbon, and glass FRCM-concrete joints. The results allow for comparing the performance of the joints with carbon, basalt, and glass fibers in terms of applied load – global slip response and failure mode. The influence of matrix age was also investigated. The curing time of the mortar matrix was found to influence the load carrying capacity of carbon FRCM – concrete joints.

Meeting Name

8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016 (2016: Dec. 14-15, Hong Kong, China)

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Basalt; Bridge decks; Carbon; Concretes; Debonding; Fiber bonding; Fiber reinforced plastics; Fibers; Glass; Mortar; Reinforced concrete; Reinforced plastics; Reinforcement; Applied loads; Cementitious matrices; Civil structure; Concrete substrates; Direct shear test; Fiber reinforced; Fiber reinforced polymer composites; FRCM; Polymer matrix composites; Glass

International Standard Book Number (ISBN)

978-988144802-6

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 The Hong Kong Polytechnic University. Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, All rights reserved.

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